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Connection, lower level
DO
DO1
DO2
DO3
I Max.
6 A
6 A
6 A
(4)
(4)
(4)
U
DO - Digital outputs, 15 pcs. DO1 - DO15
DO5 and DO6 are solid state relays.
The relays are de-rated to the specified values.
AI - Analogue inputs, 6 pcs. AI1 - AI6
Temperature sensor
• Pt 1000 ohm, AKS 11 or AKS 21.
• NTC 86K ohm @ 25°C, from digital scroll.
Pressure transmitters
• Current: 0-20 mA / 4-20 mA, AKS 33 (supply = 12 V)
AI - Analogue inputs, 4 pcs. AI7 - AI10
Pressure transmitters
• Ratiometric: 10-90% of supply, AKS 32R
• Signal: 1-5 V, AKS 32
Factory settings: AI7=Po, AI8=Pc
Temperature sensor
See above
AKS 32R
AKS 32
2
DO4
DO5
DO6
6 A
0.5 A
0.5 A
(4)
min. 50 mA
min. 50 mA
Ioff < 1,5 mA
Ioff < 1,5 mA
All 24 V or
all 230 V a.c.
AKS 33
Instructions RI8RD4ML © Danfoss 2015-04
ENGLISH
DO7
DO8
DO9
DO10
6 A
6 A
6 A
6 A
(4)
(4)
(4)
(4)
Supply Voltage
230 V a.c.
AO - Analogue output, 4 pcs. AO1 - AO4
Must be used when using a frequency converter or EC motors.
Connect 24 V on N and L. Avoid earth fault current. Use
double-insulated transformer. The secondary side must
not be earthed.
Obtain 0-10 volts from terminals N and AO1, respectively N
and AO2. PAY ATTENTION TO THE POLARITY of N.
Modbus
It is important that the installation of the data communication
cable be done correctly. Cf. separate literature No. RC8AC.
Remember termination at the bus termination.
Termination
(Only if a remote display i connected)
Insert a jumper between the two connections on the left
(R120-CANH).
Warning
The supply voltage of AI may not share the
signal with other controllers.
DO11
DO12
DO13
DO14
6 A
6 A
6 A
7 A
(4)
(4)
(4)
(3,5)
All 24 V or
all 230 V a.c.
all 230 V a.c.
DO15
Σ 1-15
7 A
92 A
(3,5)
All 24 V or
AK-PC 651
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